Function As Room Temperature-Dependent Controller; Output Control (Only 2-Wire Bus/Ems 2); Flow Temperature Control (2-Wire Bus/Ems 2/Opentherm) - Bosch CR 10 Manual

4 | Product Description
Function
CR 10
Room temperature-dependent,
modulating
CR 10
& zone module
Room temperature control system with
3 temperature sensors (zone control),
modulating
Delivered condition
1) Classification in accordance with EU Regulation No. 811/2013 for
identification of integrated systems
2) Contribution to seasonal energy efficiency for central heating in %
2.1

Function as room temperature-dependent controller

The CR 10 controls the heat source via the room temperature. Only allowed with
timer in Germany. The user interface is not suitable for controlling heat sources from
other manufacturers with an OpenTherm BUS system (no OpenTherm certificate).

Output control (only 2-wire bus/EMS 2)

The heat output of the heat source changes according to the deviation between the
current and required room temperature. This method of control is suitable for a
uniform temperature level, e.g. open-plan house. There are fewer burner starts and
shorter pump runtimes. This control mode may not be available depending on the
heat source that is connected.

Flow temperature control (2-wire BUS/EMS 2/OpenTherm)

The flow temperature changes according to the deviation between the current and
required room temperature. This method of control is suitable for residential units
and houses with different temperature zones. The accuracy of control is greater and
the flow temperature is limited. This saves fuel.
The pump runtimes can be shortened by means of optimised running of the pump.
CR 10
1) 1),2)
Class [%]
V 3.0
VIII 5.0
6720830560 (2015/06)